Title :
The use of semiconductor gas sensors under transient operating conditions
Author :
Jones, T.A. ; Revell, G.
Author_Institution :
Health & Safety Executive, Sheffield, UK
Abstract :
The chemisorption of gases on the surfaces of semiconducting materials can result in measurable changes in the electrical conductivities. This effect has been widely investigated as a means of detecting both flammable and toxic gases. The authors discuss the properties of metal oxide sensors, e.g. SmO2, ZnO and Cr2O3 and consider their selectivity and temperature related behaviour
Keywords :
II-VI semiconductors; chemical variables measurement; chemisorption; chromium compounds; electric sensing devices; semiconductor materials; tin compounds; zinc compounds; Cr2O3; SmO2; ZnO; chemisorption; electric sensing devices; electrical conductivities; selectivity; semiconducting materials; semiconductor gas sensors; temperature; toxic gases; transient operating conditions;
Conference_Titel :
Solid State and Smart Sensors, IEE Colloquium on
Conference_Location :
London
